What unrealistic event happen in the devil and tom walker?

In "The Devil and Tom Walker" by Washington Irving, an unrealistic event occurs when Tom Walker encounters the Devil in the woods and makes a Faustian pact for wealth and success. This supernatural meeting, along with the Devil's ability to offer immense power and riches in exchange for one's soul, is a clear departure from reality. Additionally, the transformation of Tom's character, his eventual downfall, and the fantastical elements surrounding the Devil's appearance contribute to the story's allegorical nature, emphasizing moral lessons rather than realistic events.